JP2005523203A - boat - Google Patents

Abstract

A tow boat with a towing point (22, 23), such as a towing hook, arranged to allow the towing line to move freely in both directions. The tow boat deck room (27) and additional superstructure are located in front of the towing point (22, 23). It has at least one hold (11) for transporting and / or processing of fish, which hold in both longitudinal directions from the center of the ship. Here, a hold (11) is provided to increase the vessel's towing capacity, quick intake and drainage from the sea, intake of seawater for circulation, and / or increased stability. .

Description

  The present invention relates to a towboat as indicated in the introduction of claim 1. “Tug” means any type of tug constructed and equipped for towing, hauling and rescue boats and ships and other sailing structures.

  Ships are typically designed and built for a specific purpose. Thus, many ships are manufactured for specific purposes such as ferries, fishing boats, fish carriers, tigs, supply ships, fire fighting ships, oil pollution inspection ships, etc., each having a specific structure and design.

  For example, a simple combined ship having a hold that can be used for different purposes and methods is known. However, there is a limit to the progress of composite ships. An example of an existing composite ship is a tamo ship (ring net vessel) used as a trawl.

  Tugboats with special demands considering low freeboard, high power engines and stability have been manufactured for decades. Conventional tugboats need to have tow hooks or tow points located at appropriate intervals in front of a traditional rudder or propeller. This is necessary to achieve good turning capability when using a rudder. The tug is equipped with different propulsion systems, traditional, ASD and so-called tractors, and escort vessels. Such ships are not used for purposes other than towing, and are rarely used as fire and icebreakers. Special stability requirements make it difficult to modify the tug for other uses when it is not used for towing. Thus, today, tugboats are purely special purpose vessels and are relatively expensive to operate.

  British Patent Application Publication No. 2.071.580 (Van, Valen) discloses a ship that is positioned as what is now referred to as an early-type "marine construction service ship". The main feature of this ship is that the shape of the water level line part can be extended to increase the draft when used as an ocean-going ship (Patent Document 1).

  Known ships can be used as ocean-towed but cannot be used as tugboats or fish carriers. This is because it is too large, does not have the towing hooks required for conventional tugboats, and the distance between the rudder and possible towing points is too short with respect to the distance between the towing point and the bow.

Norwegian Patent Publication No. 132.896 (Plan) discloses a marine construction vessel for towing and anchoring operations in the open ocean. A relatively small tank and a larger hold have been proposed. The combination with the container load of the deck results in poor stability (Patent Document 2).
UK Patent Application Publication No. 2.071.580 Norwegian Patent Publication No. 132.896

(the purpose)
It is an object of the present invention to provide a tug that can be used for other applications at the same time. The purpose is to produce a ship with sufficient properties for various applications. Conversion from one application to another is possible with minimal readjustment and minimal time delay.

  In particular, it is an object of the present invention to provide a tugboat that is suitable for transporting live fish and that can be towed at the same time, and that is equipped with a device capable of calculating the number of fish, performing deousing, and the like. It can also be adapted for other purposes related to the development of ice breaks and booms and / or the uptake of contaminants.

(Invention)
The invention is presented in claim 1. Claims 2 to 7 show further preferred embodiments of the invention.

  The ship of the present invention can function as a fish carrier and a tugboat. This is achieved by taking advantage of tank capacity for better stability. Stable ballast is achieved in the usual way by filling the tank with water or water and fish, or with other solutions.

  Such ships can alternatively or simultaneously be used for tugboat operations and fish transport. When used as a tugboat, it provides as much capacity as possible by filling the tank to the maximum with water or water and fish, or other solutions.

  Today's fish carriers and tugs have a lot of downtime. The ship of the present invention can use the same ship for both purposes and other purposes without extensive preparation.

  As the tank is filled with water or, in some cases, water and fish, the weight increases and the freeboard is lowered. This results in a more effective traction and higher otter effect during towing. In addition, stability is increased, which allows for a larger engine, resulting in greater traction (eg “bollard pull”).

  Another and important advantage is in rescue operations, for example, gaining greatly increased mass, i.e., increased traction when pulling a ship stranded with a tugboat.

  Alternatively, the ship can be equipped with a fixed ballast so that it can meet the stability requirements even if it is an empty tank or partly an empty tank.

(Example)
In the following, the invention is described in more detail with reference to the drawings:
FIG. 1 is a side elevational view of a ship according to the present invention, wherein the engine room is provided at the stern and the hold is provided at the center of the hull (midship).
FIG. 2 is a similar drawing of another embodiment, which can further be used as an icebreaker and a fireboat.
FIG. 3 is a side elevational view of a further embodiment, where the engine room is connected to the hold and located in the center of the hull, and a double rudder propeller unit (“tractor” (“ Tractor ”)).

  FIG. 1 shows a ship of the present invention, and a hold 11 is arranged at the center of the hull. An engine room 12 is disposed at the rear end of the hold 11 and includes a single or double propulsion engine 13. There is a space 14 for a day room, a ballast tank, etc. at the front end of the hold 11. Water pressure control hatches 15 and 16 are provided in the front bottom and stern of the hold 11 for filling and discharging. The hold 11 can be divided into a plurality of parts.

  In front of the propeller 19 and rudder 20, the ship has a bow thruster 17 and an additional side thruster 18 is located in the hull. A deck 21 is provided between the stern and the deck room 27, and it is possible to provide an edge member and a hatch 39.

  A tow hook 22 and a tow block 23 are provided at the rear end of the deck room 27. In the embodiment, these portions are provided near the center of the hull. In the conventional hull form, it is provided between the ladder stock and the center of the hull. A towing bridle is provided in the middle of the deck 21 in the longitudinal direction, behind the hatch, on a winch 25 with a bobbin winder 26. If the ship has the required stability with respect to traction (bollard pull), these facilities allow the ship to be used as a tug in normal usage.

  The deck room 27 has a cabin elevator 28 that leads to the engine room 12 through a hatched passage 29 of the hold 11. For example, the passage 29 can be raised to the height of the fence, and the lower portion can be embedded below the deck of the hold 11.

  On the opposite side of the hatch of hatch 11 there are two passages 30 for air intake and exhaust, each of which follows a chimney 31 protruding from deck room 27. Inside deck room 27 is a pump and a device for handling loads such as live fish. Above deck room 27 is crane 32, automatic sorter 33, and dredger 34.

  In front of deck room 27 is a ship superstructure 35 with its wheelhouse and crew facilities in a known manner. The ship has rubber fenders and barbus bows 38 at the bow and stern 36,37.

  As will be apparent from the following, the example of this embodiment of the present invention can be modified in different ways. 2 and 3, the same reference numerals are used for elements and portions that are the same as or correspond to those in FIG.

  FIG. 2 shows another embodiment with an ice breaking bow 40, a high-pressure cannon 41 above the superstructure 35 for fire extinguishing, and a cloak 42 below the towing mooring line 24. The cloak 42 has an entrance 43 for entering and exiting the engine room 12.

  Therefore, this embodiment has the advantage of wider use, and can be used alternately as a tugboat, a fish carrier, an ice breaker and a firefighter with a short switching time.

  FIG. 3 shows an embodiment in which the propulsion engine 50 is provided in the engine room 51 in the center of the hull, and the double rudder propeller unit 52 extends downward. The engine room 51 may have a shaft shape. A combined foil and docking support 53 are provided in the lower part of the front part of the ship, and a heel 54 is provided under the stern.

  With this propulsion system, the towline 55 can be inserted further onto the tow winch 25 below the stern and tow mooring line 56. Since the turning performance required for conventional tugboats is not necessary due to the location and type of propeller, the tow hook 22 can be moved to the stern.

  Other than the double propeller unit 52 shown, for example, the propulsion unit may be formed by different types of propulsion units, such as Voith Schneider. Alternatively, a diesel electric engine aggregate that supplies electricity to the electric motor at the bottom of the stern can be provided in the engine room 51. Other propulsion systems such as jet current and integrated electric engine propellers are also interesting.

  The so-called ASD method with two propellers at the stern (ASD-solution) makes it possible to have a tow point at the bow and a tow winch at the front of the superstructure.

  The vessel can be configured to have a small pistil when the hold 11 is filled with water or even fish. This provides excellent stability which is particularly important when the ship is used as a tug under this circumstance. When a ship is obtained in this way, it can be used with minimal preparation without causing downtime when performing different operations alternately. If the ship is used as a fish carrier for transporting fish, for example from a net cage to a fish tank, and there is no water in the hold 11, it can quickly fill the hold 11 so that the ship is quickly pulled. Can be. This can also be done between the two work sites.

  A distinguishing feature of the ship is that it can be used for at least two substantially different purposes at the same time. In the past, two different ships were built for such purposes.

  Compared to fish carriers, costs for fenders, towing hooks, towing winches and additional engine power are the main additional costs. Today, tugboats and fish carriers have long downtime and cannot be used effectively, and the utilization rate is greatly improved by the present invention. In fact, the ship can carry out towing and cargo transport at the same time. This is a great utility-valued development that goes beyond economic aspects. For example, it would be possible to have a better available ship strategically placed anywhere on the coastline, and urgently moving net cages due to algae or ice problems It is possible to tow the fish farm when it is necessary to do so.

  With regard to emergency preparedness, having a better available ship in the neighboring area is a great advantage for the coastal area and can be introduced to work on shipwrecks and the like. The ship of the present invention can be used for both towing and draining, the pump device can be easily connected to the suction hose, and the hold can provide space for the sucked liquid. In this way, a new type of rescue ship can be obtained. As shown in FIG. 2, the range of use is further expanded by providing a ship equipped with a fire fighting apparatus and an icebreaking bow. Either modification results in a relatively inexpensive additional cost.

  Simultaneously with the deck room 27, it is also possible to provide different facilities for processing fish such as a counting device, a sorting device, a lice removing device, a cleaning device, an RSV device, and an aeration facility inside or outside. In addition, an additional drainage pump device for emergency pumping or draining of crude oil spills or for wrecking can be provided.

  The deck section and the hold can be used for the transportation of oil fences and the equipment for sucking up oil from the oil fences for the recovery of contaminated waters.

  Furthermore, the ship of the present invention can also be equipped with a device for safely rendering ballast water, including ballast water from ships and other offshore structures, for example by radiation treatment.

1 is a side elevational view of a ship of the present invention. FIG. 6 is a side elevational view of another embodiment. FIG. 6 is a side elevational view of a further example.

Explanation of symbols

11 Funakura 12 Engine room 13 Double propulsion engine 14 Space 15 Water pressure control hatch 16 Water pressure control hatch 17 Bow thruster 18 Side thruster 19 Propeller 20 Rudder 21 Deck 22 Towing hook 23 Towing block 24 Towing mooring cable 25 Towing winch 26 Bobbin winding Machine 27 Deck room 28 Cargo cabin 29 Passage 30 Passage 31 Chimney 32 Crane 33 Automatic sorter 34 Dredger 35 Superstructure 36 Bow 37 Stern 38 Barbus bow 39 Hatch 40 Icebreak bow 41 High-pressure water cannon 42 Cloak 43 Engine entrance 50 51 Engine room 52 Double propeller unit 53 Docking support 54 Heel (skeg)
55 Towing Line 56 Towing Mooring Line

Claims (7)

Having at least one hold (11) for transporting and / or processing fish extending in both longitudinal directions from the center of the ship, the hold (11) from the sea so as to increase the towing capacity of the ship Characterized in that it comprises a device for the rapid intake and drainage of water, the intake of seawater for circulation, and / or increasing the draft of the ship,
Has a tow point (22, 23; 56) such as a tow hook, tow winch, tow tow (hawse) or tow block installed in the free area at the rear, deck room (27) and additional upper part of the tugboat A tugboat in which the towline can move freely on both sides when the structure is placed in front of the towing point (22, 23).   Preferably, a passage (29) to the engine room (12) is provided on at least one side of the ship via the hold (11) or on the side of the hold by a method of rising upward toward the edge of the ship side. The tugboat of claim 1.   Ship according to claim 1, characterized in that the engine room (51) has a hold on both sides and forms a shaft in the hold (11).   The device (25) for fastening a towline has a propulsion system (50) in the middle of the ship or at the bow part, characterized in that it is provided behind the deck part (21). Any one of the ships.   5. Ship according to any one of claims 1 to 4, characterized in that it has a towing point at the bow.   6. Ship according to any one of the preceding claims, characterized in that it has a device for handling oil fences and a similar oil recovery machine and / or a device for sucking oil pollution from the sea area.   The ship according to any one of claims 1 to 6, further comprising a device for safely purifying ballast water.

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